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JS-504 THEORY OF OPERATION Code Y109321-8
PUBLICATION ISSUED BY: Olivetti S.p.A. 77, Via Jervis - 10015 Ivrea (TO) Italy
Copyright © 2008, Olivetti All rights reserved
Revision history After publication of this service manual, the parts and mechanism may be subject to change for improvement of their performance. Therefore, the descriptions given in this service manual may not coincide with the actual machine. When any change has been made to the descriptions in the service manual, a revised version will be issued with a revision mark added as required.
Revision mark: • To indicate clearly a section revised, 1 is shown at the left margin of the revised section. The number inside 1 represents the number of times the revision has been made. • To indicate clearly a page that contains the revision, 1 is shown near the page number of the corresponding page. The number inside 1 represents the number of times the revision has been made. NOTE Revision marks shown in a page are restricted only to the latest ones with the old ones deleted. • When a page revised in Ver. 2.0 has been changed in Ver. 3.0: The revision marks for Ver. 3.0 only are shown with those for Ver. 2.0 deleted. • When a page revised in Ver. 2.0 has not been changed in Ver. 3.0: The revision marks for Ver. 2.0 are left as they are.
Theory of Operation Ver. 1.0 Aug. 2007
JS-504
CONTENTS JS-504
1.
Product specification ............................................................................................... 1
2.
Paper path............................................................................................................... 3
2.1
Exit to the Upper tray ............................................................................................ 3
2.2
Exit to the Lower tray ............................................................................................ 3
Outline
Outline
3.
Construction ............................................................................................................ 5
4.
Drive ........................................................................................................................ 6
5.
Operation ................................................................................................................ 7
5.1
Transport/exit section............................................................................................ 7
5.1.1
Paper transport ............................................................................................. 7
5.1.2
Transport path switching ............................................................................... 8
5.1.3
Full-of-paper detecting mechanism............................................................. 12
5.2
Paper shift section .............................................................................................. 13
5.2.1
Paper shift mechanism................................................................................ 13
5.2.2
Shift operation overview.............................................................................. 14
i
Composition/Operation
Construction and operation
Composition/Operation
Outline
JS-504
Theory of Operation Ver. 1.0 Aug. 2007
Blank Page
ii
Theory of Operation Ver. 1.0 Aug. 2007
1. Product specification
Outline Product specification
JS-504
1.
A. Type Type
Built-in type 2-bin stacker
Installation
Installed in main body
Document alignment
Center
Modes
Outline
B. Functions Sort, group, sort offset, group offset
C. Paper Exit tray
Upper tray
Size
Type
Capacity
A5S, B5S/B5, A4S/A4, B4, A3 8-1/2 X 11S/8-1/2 X 11, 8-1/2 X 14, 11 X 17 Max.: 297 mm X 431.8 mm 11.75 inch X 17 inch Min.: 148 mm X 210 mm 5.75 inch X 8.25 inch
Plain paper (64 to 90 g/m2) (17 to 24 lb)
50 sheets
Plain paper (64 to 90 g/m2) (17 to 24 lb)
150 sheets
Thick paper 1 (91 to 120 g/m2) (24.25 to 32 lb)
Lower tray
A6S, A5S/A5, B6S, B5S/B5, A4S/A4, B4, A3, A3 Wide, Post card S 5-1/2 X 8-1/2S/5-1/2 X 8-1/2, 8-1/2 X 11S/8-1/2 X 11, 8-1/2 X 14, 11 X 17, 12-1/4 X 18 Max.: 311.1 mm X 1200 mm 12.25 inch X 47.25 inch Min.: 90 mm X 139.7 mm 3.5 inch X 5.5 inch
Thick paper 1 + (121 to 157 g/m2) (32.25 to 41.75 lb) Thick paper 2 (158 to 209 g/m2) (42 to 55.5 lb) Special paper
Thick paper 3 (210 to 256 g/m2) (55.75 to 68 lb)
20 sheets
Thick paper 4 (257 to 300 g/m2) (68.25 to 72.75 lb) OHP film Post card Label
Y109321-8
Theory of Operation
Envelope
10 sheets
Long size paper
1 sheet
1
1. Product specification
Theory of Operation Ver. 1.0 Aug. 2007
JS-504
D. Offset function Exit tray
Lower tray
Shift amount
30 mm
Types of paper to be used
Plain paper, Thick paper 1/1+/2/3/4
Size
B5S/B5, A4S/A4, B4, A3 8-1/2 X 11S/8-1/2 X 11, 8-1/2 X 14, 11 X 17
E. Machine specifications Outline
Power requirements
DC 24 V ± 10 % (supplied from the main body) DC5 V ± 5 %
Max. power consumption
40 W or less
Dimensions
431 mm (W) X 540 mm (D) X 131 mm (H) 17 inch (W) X 21.25 inch (D) X 5.15 inch (H) 543 mm (W) X 477 mm (D) X 129.5 mm (H) *1 22 inch (W) X 21.25 inch (D) X 5.15 inch (H) *1
Weight
5.0 kg (11 lb)
*1: Size when the paper exit tray is pulled out F. Operating environment • Conforms to the operating environment of the main body. NOTE • These specifications are subject to change without notice.
2
Theory of Operation
Y109321-8
Theory of Operation Ver. 1.0 Aug. 2007
Exit to the Upper tray
Outline
2.1
Paper path JS-504
2.
2. Paper path
A0D5T1C101AA
2.2
Exit to the Lower tray
A0D5T1C102AA
Y109321-8
Theory of Operation
3
Theory of Operation Ver. 1.0 Aug. 2007
Outline
JS-504
2. Paper path
Blank Page
4
Theory of Operation
Y109321-8
Theory of Operation Ver. 1.0 Aug. 2007
3. Construction
Construction and operation Construction
JS-504
3.
Composition/Operation
A0D5T2C112AA
Upper tray Transport path switching mechanism
Lower tray
Paper shift mechanism A0D5T2C101AA
Upper tray exit sensor (PS2) Lower tray exit sensor (PS1) Route change home sensor (PS4)
Shift home sensor (PS6) A0D5T2C113AA
Front door sensor (PS3)
Y109321-8
Theory of Operation
5
4. Drive
Drive
JS-504
4.
Theory of Operation Ver. 1.0 Aug. 2007
JS control board (JSCB) Transport motor (M1)
Upper tray exit roller
Composition/Operation
Lower tray exit roller
Retraction motor (M3) A0D5T2C102AA
Shift motor (M2)
6
Theory of Operation
Y109321-8
Theory of Operation Ver. 1.0 Aug. 2007
5.1
Operation Transport/exit section
5.1.1
JS-504
5.
5. Operation
Paper transport
• The transport motor is energized a predetermined period of time after the paper has activated the paper exit sensor of the copier. • Drive of the transport motor rotates the exit roller, so that paper is transported into the corresponding tray.
Transport motor (M1)
Composition/Operation
Upper tray exit roller
Lower tray exit roller A0D5T2C103AA
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Theory of Operation
7
5. Operation 5.1.2
Theory of Operation Ver. 1.0 Aug. 2007 Transport path switching
JS-504
A. Overview • The paper path switching guide adequately switches the paper transport path to ensure that the paper is transported properly into the upper or lower tray as necessary. • The output tray is determined according to the setting made in Output Tray Setting of Administrator Setting and options of finishing, paper type, and paper size as selected for copy job setup. Output tray
Output Tray Setting
Finishing
Paper type
Paper size
Upper tray
Set to upper tray
–
Plain paper, Recycled paper
–
Lower tray
Set to lower tray
Sort
Plain paper, Recycled paper, Special paper
A3wide, A5 A6S, B6S
Composition/Operation
Upper tray
Paper path switching guide
Feeding from main body Lower tray
8
Theory of Operation
A0D5T2C106AA
Y109321-8
5. Operation
B. Operation • Drive from the route change motor moves the paper path switching guide up or down to select the output tray for the paper. • The route change home sensor detects the position of the paper path switching guide. Guide moving direction
Route change home sensor
Upper tray
Guide swung down
Unblocked
Lower tray
Guide swung up
Blocked
Composition/Operation
Output tray
JS-504
Theory of Operation Ver. 1.0 Aug. 2007
Route change motor (M3)
Paper path switching guide
Cam
A0D5T2C104AA
Route change home sensor (PS4)
Paper path switching guide
Guide swung down (to feed paper into upper tray)
Guide swung up (to feed paper into lower tray) A0D5T2C105AA
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Theory of Operation
9
JS-504
5. Operation
Theory of Operation Ver. 1.0 Aug. 2007
(1) Predrive • The route change motor is energized to move the paper path switching guide into a position for feeding paper into the lower tray when the copier is turned ON or released from the sleep mode, or a malfunction is reset. (2) Paper exit into the upper tray • The route change home sensor is used to determine the position, at which the paper path switching guide is stopped, so that the motion of the switching guide can be controlled as necessary. Route change home sensor
Paper path switching guide stop position
Unblocked
Paper fed into upper tray
Not applicable
Paper fed into lower tray
The route change motor is energized to move the paper path switching guide into the position, at which paper is fed into the upper tray.
Blocked
Control details
Composition/Operation
Paper path switching guide
Before switching
After switching A0D5T2C108AA
• Control for feeding paper into upper tray - paper path switching guide moved, feeding out two sheets of paper Exit sensor at copier Transport motor (M1) Route change home sensor(PS4) Route change motor (M3) Lower exit sensor (PS1) Upper exit sensor (PS2) Shift motor (M2) Shift home sensor (PS6)
[1] [2] [3]
[4] [5]
[6]
[7] A0D5T2C119AA
10
[1]
1st sheet of paper activating exit sensor of copier
[5]
2nd sheet of paper activating exit sensor of copier
[2]
Drive of route change motor started
[6]
2nd sheet of paper reaching upper tray
[3]
Drive of transport motor started
[7]
2nd sheet of paper fed out, transport motor deenergized
[4]
1st sheet of paper reaching upper tray
Theory of Operation
Y109321-8
5. Operation
(3) Paper exit into the lower tray • The route change home sensor is used to determine the position, at which the paper path switching guide is stopped, so that the motion of the switching guide can be controlled as necessary. Route change home sensor
Paper path switching guide stop position
Control details
Unblocked
Paper fed into upper tray
The route change motor is energized to move the paper path switching guide into the position, at which paper is fed into the lower tray.
Blocked
Paper fed into lower tray
Not applicable
JS-504
Theory of Operation Ver. 1.0 Aug. 2007
Before switching
After switching
A0D5T2C107AA
• Control for feeding paper into lower tray - paper path switching guide not moved, feeding out two sheets of paper Exit sensor at copier Transport motor (M1) Route change home sensor(PS4) Route change motor (M3) Lower exit sensor (PS1) Upper exit sensor (PS2) Shift motor (M2) Shift home sensor (PS6)
[1]
[2]
[3]
[4]
[5]
[6] A0D5T2C110AA
[1]
1st sheet of paper activating exit sensor of copier
[4]
2nd sheet of paper activating exit sensor of copier
[2]
Drive of route change motor started
[5]
2nd sheet of paper reaching lower tray
[3]
1st sheet of paper reaching lower tray
[6]
2nd sheet of paper fed out, transport motor deenergized
Y109321-8
Theory of Operation
11
Composition/Operation
Paper path switching guide
5. Operation
JS-504
5.1.3
Theory of Operation Ver. 1.0 Aug. 2007 Full-of-paper detecting mechanism
• Each tray is mounted with a tray paper full detect board that detects a full-of-paper condition of the tray. • The tray paper full detect board consists of a light emitter (LED) and a photoreceiver that are paired up to serve for each tray. The system determines that the tray is in a full-ofpaper condition when paper blocks the LED light. • When a full-of-paper condition is detected, the copier feeds paper being printed out and then stops, with a corresponding message shown on the control panel. • A stack of 150 sheets of plain paper (lower tray) is detected as a full-of-paper condition, excluding curled paper.
Upper tray paper full detect board/PR (T2FDTB/PR)
Composition/Operation
Upper tray paper full detect board/LED (T2FDTB/LED)
Lower tray paper full detect board/PR (T1FDTB/PR) Lower tray paper full detect board/LED (T1FDTB/LED) A083T2C514AA
12
Theory of Operation
Y109321-8
Theory of Operation Ver. 1.0 Aug. 2007
Paper shift section
5.2.1
Paper shift mechanism
• The shift section is shifted forward during paper exit so that print jobs can be offset, one job from another. • The shift section is moved by drive supplied from the shift motor. • The shift operation is executed when the sort function is used by the user. Shift section
Lower tray exit roller
Rear
Composition/Operation
Front
Shift direction A083T2C513AA
Shift home sensor (PS6)
Y109321-8
JS-504
5.2
5. Operation
Shift motor (M2)
Theory of Operation
13
5. Operation
JS-504
5.2.2
Theory of Operation Ver. 1.0 Aug. 2007 Shift operation overview
• The shift motor is energized to slide the shift section in a forward direction at a predetermined timing during paper exit into the lower tray after the trailing edge of the paper has moved past the exit roller of the copier. • The position of the shift section is controlled as detailed below. Shift section position
Position control
Shift home sensor
Home position – rearward
Shift home sensor output
Blocked
Shift position – forward
Shift motor speed (number of pulses)
(Unblocked)
• After the current sheet of paper has been fed out at the shift position, the shift section is returned to its home position before the next sheet of paper reaches the lower tray exit roller.
Shift section
Composition/Operation
Paper
Home position
Shift motor
Shift position A083T2C520AA
Shift home sensor
14
Theory of Operation
Y109321-8
Theory of Operation Ver. 1.0 Aug. 2007
5. Operation
JS-504
• 1st sheet of paper fed out normally with the 2nd sheet of paper fed out at shift position Exit sensor at copier Transport motor (M1) Route change home sensor(PS4) Route change motor (M3) Lower exit sensor (PS1) Upper exit sensor (PS2) Shift motor (M2) Forward rotation
Backward rotation
Shift home sensor (PS6)
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[1]
1st sheet of paper activating exit sensor of copier
[5]
2nd sheet of paper reaching lower tray
[2]
Drive of transport motor started
[6]
Shift operation for 2nd sheet of paper started
[3]
1st sheet of paper reaching lower tray
[7]
2nd sheet of paper fed out at shift position
[4]
1st sheet of paper fed out at normally position
Y109321-8
Shift section returned to its home position
Theory of Operation
15
Composition/Operation
A0D5T2C111AA
Theory of Operation Ver. 1.0 Aug. 2007
Composition/Operation
JS-504
5. Operation
Blank Page
16
Theory of Operation
Y109321-8
UPDATING STATUS
DATE
10/2008
UPDATED PAGES
1ST EDITION
PAGES
CODE
22
Y109321-8